can somebody please help
Consider two straight bars of uniform cross section made of the same material. Bar 1 has an axial length of 1 m and a square cross section with side length 1 mm. Bar 2 has an axial length of 3 m and a round cross section with 2 mm diameter. When subjected to 1 KN axial tension, bar 1 elongates by 5 mm. What will be the elongation of bar 2, δ2, if it is compressed axially with a load of 25 KN?

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There could be a compression stability problem?

-119.36 mm

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